The DHT22 is a temperature and relative humidity sensor. It has a digital converter on board, which communicates with the Raspberry Pi via a 1-wire interface. The sensor requires a 3.3V power supply, ...

#Temperature and Humidity Measurement with DHT22 and Raspberry Pi Pico W Introduction This project involves measuring temperature and humidity using a DHT22 sensor connected to a Raspberry Pi Pico W.

Here are the steps I took to install Node-RED on my Raspberry Pi B, and then to wire it up to a DHT22 humidity and temperature sensor to log the conditions in my office. It’s based on my work last ...